The development of a shelled egg allowed the ____ to become completely adapted to land.
A) mammals
B) insects
C) reptiles
D) amphibians
Correct Answer:
Verified
Q32: These are free-living, bottom dwelling flatworms found
Q33: The first organisms to adapt to life
Q34: The first animals to adapt to life
Q35: The first vertebrates to be able to
Q36: All amphibians must return to the water
Q38: For animals to reproduce on land they
Q39: The first mammals reproduced by means of
A)
Q40: Marsupial animals complete development in
A) a placenta.
B)
Q41: The most common terrestrial animals are
A) birds.
B)
Q42: Polychaetes are
A) parasites.
B) primarily marine.
C) able to
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